/*
 * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.util.pattern;

/**
 * A path element representing wildcarding the rest of a path. In the pattern
 * '/foo/**' the /** is represented as a {@link WildcardTheRestPathElement}.
 *
 * @author Andy Clement
 * @since 5.0
 */
class WildcardTheRestPathElement extends PathElement {

    WildcardTheRestPathElement(int pos, char separator) {
        super(pos, separator);
    }


    @Override
    public boolean matches(int pathIndex, PathPattern.MatchingContext matchingContext) {
        // If there is more data, it must start with the separator
        if (pathIndex < matchingContext.pathLength && !matchingContext.isSeparator(pathIndex)) {
            return false;
        }
        if (matchingContext.determineRemainingPath) {
            matchingContext.remainingPathIndex = matchingContext.pathLength;
        }
        return true;
    }

    @Override
    public int getNormalizedLength() {
        return 1;
    }

    @Override
    public int getWildcardCount() {
        return 1;
    }


    public String toString() {
        return "WildcardTheRest(" + this.separator + "**)";
    }

    @Override
    public char[] getChars() {
        return (this.separator + "**").toCharArray();
    }
}
